Ultrasonic-assisted extracting and antioxidant activity of total flavonoids from leaves of camellia oleifera Abel

doi:10.13652/j.issn.1003-5788.2015.03.038

Home > Archive>Volume 31, Issue 3, 2015 >162-166. DOI:10.13652/j.issn.1003-5788.2015.03.038

Ultrasonic-assisted extracting and antioxidant activity of total flavonoids from leaves of camellia oleifera Abel
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                        10.13652/j.issn.1003-5788.2015.03.038
                    
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Affiliation:(1.Faculty of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China; 2. Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Changsha, Hunan 410004, China)
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Abstract:

Technology of ultrasonic-assisted method was optimized to extract flavonoids from leaves of camellia oleifera Abel, and antioxidant activity of flavonoids was investigated. It showed that the optimized conditions were 50% ethanol of extracting solvent, 1∶20 of material-liquid ratio(m︰V), 70 ℃ of extracting temperature, 2 times under 300 W of electric power, 30 min of ultrasonic treatment time , The optimized extraction yield of total flavonoids was 47.01 mg RE/g. The extraction of flavonoids from leaves of Camellia Oleifera Abel. showed strong free- radical scavenging activities of DPPH, ABTS and hydroxyl with 15.12, 21.15 and 410 μg RE/mL as IC50, respectively.

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曹清明,邬靖宇,钟海雁,等.油茶叶中黄酮的超声辅助提取及其抗氧化活性研究[J].食品与机械英文版,2015,31(3):162-166.

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Received:September 15,2014
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Online: March 17,2023
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